Caught this excellent adaptation of a H. P. Lovecraft story on the Sci-Fi channel a little over a week ago. For the unacquainted, Lovecraft wrote many stories using the concept of evil, older and vastly terrifying races of beings that make the Judeo-Christian tradition of Yah-God look like kids playing marbles.
This story, set in a fishing town, has to do with how the villagers spurned the church of the Nazarene in favor of an ancient sea-deity. The deal they thought they were making was worship Dagon and you will catch more fish, but the Thing extracted a higher price.
The town has metapmorphosed into a gaggle of slumbering sea-mutants, and they're after the luckless kids who get shipwrecked on the isle.
Suspense and scares are fun, but for me the real Lovecraftian sensation came at the end, when two characters swim for the underwater dwelling of the great sea beast. They were so puny against the temple, it really communicated the idea that there are races out there that are practically incomprehensible in age, size and horror. Watch the movie and see if the ending doesn't remind you of an any getting sucked down a garbage disposal.